Hello all. I'm having difficulties accessing files stored on a Synology DS1511+ NAS. Problem description is below:
I have a late 2009 27-inch iMac, and an early 2010 MacMini, both running Snow Leopard. For years I've been using a D-Link DNS-323 NAS to stream movies and TV Shows over PowerLine Adapters (200 mbps adapters) to both computers, as well as to a Windows laptop. Recently I decided to upgrade to a Synology DS1511+ 5-bay NAS. I've populated four of the drive bays with Western Digital 2TB hard drives, and set up a Synology Hybrid RAID array. I'm in the rather lengthy process of copying close to 2TB worth of data files (photos, music, .avi, .mkv, .m4v, etc.) from the DNS-323 to the Synology DS1511+. Incidentally, I'm using Ultracopier to assist with copying this huge volume of data, as the Mac copy utility wasn't adequate (Ultracopier is a reasonable facsimile to the Windows program Teracopy).
I'm mounting the Synology DS1511+ volumes on the iMac and MacMini using AFP, and I'm able to access and read the folders on the Synology drive mostly without a problem (I've copied about 1.5TB so far). However, after copying movie files to the Synology DS1511+, I'm unable to access certain files using my MacMini or my iMac. The files show up in the Finder window, but certain files are "grayed out" and I'm unable to copy them back to the iMac/MacMini. For example, one movie file I wanted to copy back to the iMac so I could convert it to be played on an iPod. But the particular movie file was "grayed out" and I was unable to copy it back to the iMac.
The error message reads "One or more items can't be copied to "Desktop" because you don't have permission to read them. Do you want to copy the items you are allowed to read?" But when I click "Get Info" under "Sharing & Permissions" it reads "You have custom access" and then says "everyone" has "Read & Write" privileges.
I went into the Synology NAS tools and verified that the volume has full read & write permission for all users & groups (thus far, there is only one user - "admin" and no groups...).
I am able to copy the exact same file(s) without any problem using my Windows 7 Laptop, with the Synology Volumes mounted under Windows Explorer. For the same example I described above, when I couldn't copy the file from the Synology DS1511 to my iMac, I was able to copy that exact same file from the Synology DS1511 to my Win7 laptop, and then I used the Win7 laptop to convert the file for play on an iPod. It's only on the Mac machines (iMac and MacMini) that I experience the problem of not being able to copy certain files from Synology NAS to the iMac/MacMini desktop. It's not all of the files - only specific files have the issue, and I can't see any particular pattern.
I've tried repairing permissions on the iMac and MacMini, ensuring that files are authorized under the Synology File Manger system to be accessible (read & write) by all users, and I've restarted all systems. My Win7 laptop has no problem copying the files in question. I am able to copy TO the Synology NAS from the iMac or MacMini without a problem, and for specific files on the Synology NAS I have no problem copying them from NAS to iMac/MacMini. If I use the web-browser based log-in for the Synology NAS, I'm able to download the files from the server to my iMac/MacMini desktop without difficulty, but it's obviously more convenient to use the Finder to do this.
Any suggestions or advice are greatly appreciated. Thank you in advance!